SOLUTION: Two drivers shared the driving dying a trip. One drove at 70mph and the other at 75mph. How far did each drive if the total distance was 650 miles, and the total time was 9 hours?
Algebra ->
Customizable Word Problem Solvers
-> Mixtures
-> SOLUTION: Two drivers shared the driving dying a trip. One drove at 70mph and the other at 75mph. How far did each drive if the total distance was 650 miles, and the total time was 9 hours?
Log On
Question 897320: Two drivers shared the driving dying a trip. One drove at 70mph and the other at 75mph. How far did each drive if the total distance was 650 miles, and the total time was 9 hours? Answer by lwsshak3(11628) (Show Source):
You can put this solution on YOUR website! Two drivers shared the driving dying a trip. One drove at 70mph and the other at 75mph. How far did each drive if the total distance was 650 miles, and the total time was 9 hours?
***
let x=distance traveled by 70 mph driver
let (650-x)=distance traveled by 75 mph driver
travel time=distance/speed
lcd:(70*75)
75x+70(650-x)=9*70*75
75x+45500-70x=47250
5x=1750
x=350
650-x=300
distance traveled by 70 mph driver=350 mi
distance traveled by 75 mph driver=300 mi
(